baber/WOPTO huggingface dataset:
Patent KR-200492375-Y1 (KR)
Title: 트랙 조명기구
IPC: F21V21/34
Filed: 2019-05-09
Granted: 2020-09-25
Abstract: 트랙 조명기구가 개시된다. 본 트랙 조명기구는, 외부 공급 전원을 안정화시키기 위해 마련되는 컨버터; 상기 안정화된 전원을 통해 발광되는 광원; 및 천장에 장착된 상태로 상기 외부 공급 전원을 제공하는 트랙 레일 내에 인입되어 안착되며, 상기 컨버터 및 상기 광원이 상기 트랙 레일에 고정되도록 하는 트랙 어댑터;를 포함하고, 상기 트랙 어댑터는, 상기 트랙 레일의 내측에 좌우로 마련되는 홈에 안착된다. 이와 같이 광원과 컨버터가 하우징을 통해 일체화된 구조를 가지도록 하되 광원의 조명 효율이 유지되도록 하여, 본연의 역할에 충실함과 동시에 광원과 컨버터 간의 형상적 조화를 통한 심미감 증대를 도모할 수 있게 된다. 뿐만 아니라, 이와 같이 트랙 조명기구에 추가적인 잠금 부재가 구비되도록 함으로 인해, 심미감 증대의 도모에 따라 자칫 소홀할 수 있는 안전성 확보 문제를 보다 확실히 할 수 있게 된다.
Patent KR-200494138-Y1 (KR)
IPC: A61C17/22
Filed: 2020-02-11
Granted: 2021-08-10
Abstract: 본 개시의 화장품 도포 장치는, 전동칫솔의 회전축을 중심으로 회전하는 칫솔 헤드에 장착 가능하도록 구성되는 칫솔 결합부와, 상기 회전축을 가로지르는 상면을 형성하고 상기 칫솔 결합부에 고정되는 지지부를 포함하는 부착판 헤드 및 상기 지지부에 탈부착 가능하게 결합되고 화장품이 도포되어 사용자의 피부에 접촉하도록 구성되는 퍼프를 포함할 수 있다.
Patent PH-22015000422-Y1 (PH)
Title: Sliding window assembly with enhanced water and wind ratings
Inventor: INONCILLO MARGARET ANNE MARIE STELLE R
IPC: E06B1/12
Filed: 2015-08-24
Abstract: Disclosed herein is a sliding window assembly with novel designed frames made to withstand strong winds and possible water penetration especially during hurricane or strong typhoon. The window assembly also utilizes essential elements to prevent air, wind and water penetration making in rust proof and maintenance-free, thereby enhancing the stability and strength of existing sliding windows in the market.
Patent PH-22018001115-Y1 (PH)
Title: Composition of velvet apple (diospyros blancoi) macaroons
Inventor: CEJAS ROXANNE
IPC: A21D13/04
Filed: 2018-10-04
Abstract: A composition for velvet apple macaroons comprise the following ingredients: grated velvet apple, margarine, sugar, eggs, flour, condensed milk, vanilla flavoring. Wherein said grated velvet apple is 22.9 pcnt of said mixture; said margarine is 11 pcnt of said mixture; said sugar is 14.6 pcnt of said mixture; said eggs is 9.7 pcnt of said mixture; said condensed milk is 29.8 pcnt of said mixture; said all-purpose flour is 11.6 pcnt of said mixture; said vanilla flavoring is 4 pcnt of said mixture.
Patent PH-22021050288-Y1 (PH)
Title: Formulation of brine solution for spicy salted duck egg
Inventor: MARCOS MARK JOKER L
IPC: A23L27/10
Filed: 2021-04-09
Abstract: Salted eggs are traditionally produced by soaking duck eggs in brine solution. With the current trend of food innovation, the traditional brine solution for salted egg is added with spices to enhance flavors. The present utility model is an enhancement of the formulation of brine solution by adding Philippine capsicum (Capsicum frutescens) to produce spiciness. Duck eggs were soaked in the brine solution for 14 days, then cooked under steam using open fire for 8 hours. The spicy flavored salted egg can be stored for 12 days in dry room with ambient temperature.
Patent BR-212019008685-Y1 (BR)
Title: Retrator de tecido orbital
Inventor: DAEMON BRUCE MCCLUNAN
IPC: A61B3/00
Filed: 2017-11-02
Abstract: Um retrator de tecido orbital 10 para utilização em uma operação cirúrgica na região de uma órbita ocular, compreende um corpo retrator de tecido orbital 12 e uma alça 14 que se estende a partir daí para manipulação do corpo retrator de tecido por um cirurgião. O corpo retrator do tecido compreende uma formação de canal 16 que define um canal 17. A formação de canal 16 tem um par de seções de parede lateral espaçadas 24 que definem formações de encosto ocular curvas côncavas 26 que se conformam a uma curvatura anatômica do globo ocular para encostar no globo ocular N. O corpo retrator de tecido tem extremidade proximal aberta 22 e extremidade distal aberta 20. O corpo retrator do tecido afunila da extremidade proximal para a extremidade distal, com uma porção da formação de canal na extremidade distal sendo curvada de modo a acomodar e acondicionar o nervo óptico no mesmo. O corpo do retrator tem uma seção de parede de base curva 28 em conformidade com uma curvatura anatômica da órbita.
Patent DK-200900197-Y6 (DK)
Title: Fedtsmøreapparat
Inventor: HOVE THOMAS
IPC: F16N13/20
Filed: 2009-12-01
Granted: 2013-08-23
Abstract: Ved ifølge frembringelsen at tillede fedt (3) fra en fedtbeho (1) til en strøm ningspumpe (6) opnås, at fedtet under tryk kan ledes til en eller flere stempel- pumper (12), hvorved der dels opnås et højt smøretryk, dels mulighed for anven delse af svær fedt, da pumpehjulet (5) vil ælte fedtet (3) til en pumpbar konsi stens. Apparatet, som er kompakt og let, lader sig let indbygge i en kuffert og dermed transportere, hvilket er en fordel, da det derved kan anvendes til f.eks. central- smøring af vinddrevne generatorer.
Patent IT-225264-Z2 (IT)
Title: Dispositivo porta-sacchetti.
IPC: B65D/
Filed: 1991-10-30
Granted: 1996-10-24
Abstract: Per rendere più comodo il trasporto merci con sacchetti, in particolare di plastica, evitando l'azione traumatica degli stessi sulle mani, il trovato prevede un dispositivo porta-sacchetti consistente in una maniglia d'afferramento anatomica (2), a cui sono associati inferiormente uno o più mezzi d'aggancio (6) per i manici di sacchetti.
Patent IT-226651-Z2 (IT)
IPC: E03C1/02
Filed: 1992-06-02
Granted: 1997-07-01
Abstract: A water delivery device with at least one delivery mouth (45) comprises a body (11) containing first controlled means (13) for mixing and delivery from said mouth of water coming from two first sources and second controlled means (25) of delivery from said mouth (13) of water coming selectively from second sources. In the body of the device is arranged a selector element (49) operated alternatively between a position of connection of the two first sources to mixing inlets (17,18) of the first control means (13) and selective connection positions of one of the second sources to an inlet (29) of the second control means (25). <IMAGE>
Patent TR-28921-A (TR)
IPC: A61F13/00
Filed: 1992-01-03
Abstract: An absorbent article, such as a disposable diaper, adult incontinent article, sanitary napkin, and the like, is disclosed which has a rapid acquiring, wrapped multiple layer absorbent body in an absorbent core. The absorbent article of the present invention comprises a liquid pervious topsheet, a liquid impervious backsheet, and an absorbent core positioned between the topsheet and the backsheet. The absorbent core comprises a multiple layer absorbent body comprising at least one rapid acquiring acquisition/distribution layer and at least one storage layer positioned subjacent each acquisition layer. The storage layers at least partially comprise a "high-speed" absorbent gelling material. A fluid transporting wrapping at least partially surrounds the multiple layer absorbent body to form a wrapped multiple layer absorbent body. Another storage layer is subjacent the wrapped multiple layer absorbent body. A multiple layer absorbent core for an absorbent article is also disclosed.
Patent CR-5421-A (CR)
Title: Sistema hidraulico de bombeo por medio de camaras de aire
Inventor: CARLOS EDUARDO BUCARO SEGURA
IPC: F04D25/08
Filed: 1996-11-14
Abstract: UN PROCEDIMIENTO DE BOMBEO DE AGUA CARACTERIZADO POR EL FUNCIONAMIENTO DEL TANQUE PRINCIPAL DE UNA BOMBA HIDRANEUMATICA QUE PROVOCA BOLSAS DE AIRE QUE SUBEN Y BAJAN DE LA TUBERIA DE IMPULSO.LA BOMBA ACUMULA EL AIRE DENTRO DENTRO DEL CILINDRO CENTRAL E IMPULSA EL AGUA HACIA LA SALIDA EXTERNA DE LA MISMA Y AL ENTRAR EL AGUA AL CILINDRO CENTRAL,EL AIRE LA RECHAZA Y EL EMBOLO CENTRAL SELLA HERMETICAMENTE OCASIONANDO QUE LA BOMBA TRABAJE AUTOMATICAMENTE LO CUAL SE LOGRA EN FUNCIONDEL DESNIVEL.
Patent GB-438999-A (GB)
Title: Improvements in and relating to pile drivers
IPC: E02D7/16
Filed: 1935-01-01
Abstract: 438,999. Pile drivers. MENCK & HAMBROCK GES., 78, Grosse Brunnenstrasse, Altona, Germany. Jan. 1, 1935, No. 52. Convention date, Feb. 16, 1934. [Class 68 (ii)] A pile driver of the crane type has a runner for the monkey fitted so as to be adjustable angularly and lengthwise on the end of the jib. The pile driver shown consists of a jib a, Fig. 3, pivoted at b to a carriage m, and a runner c for the monkey. The runner is pivoted at d, and its lower end can be displaced by gearing n. As shown in Fig. 7, the runner c is mounted in a shoe g, in which it can slide and be secured by a member h; the shoe g is mounted on pivots f which pass through the centre of gravity of the shoe, and are fitted in the upper end e of the jib ; extensions of these pivots f serve as journals for the pulleys i, used for lifting ropes.
Patent JP-S63167901-A (JP)
Title: Decentralized hierarchical control system
Inventor: TSUCHIDA YOSHIYUKI
IPC: G05B7/02
Filed: 1987-01-05
Abstract: PURPOSE:To quickly perform the subsequent processing by detaching a related element, when the controlled system of a local controller has become an abnormality, and displaying its detached state. CONSTITUTION:A deciding circuit JG decides in which local controller an abnormality has been generated in a controlled system, based on the respective logical levels of detectings signals SE1, SE2...SEn. A local controller for controlling a controlled system to be detached, by generating an abnormality and a local controller for controlling a controlled system to be detached, in relation to its abnormality are decided, based on a relation which has been set in advance in accordance with the plant concerned. Subsequently, by providing an output to the local controller which has been decided to be detached at that time, detaching signals SD1, SD2...SDn are raised to a logical level H. Also, the detaching signal is outputted to a display device DY, as well, provided on a central control unit MP, and a detached state of the present apparatus is displayed.
Patent YU-8599-A (YU)
Inventor: PROF MIMNAGH W M
IPC: G11B20/12
Filed: 1998-05-25
Abstract: Opisan je postupak digitalnog snimanja informacije na podesni medijum, naročito CD, prema kome postupku se snimak (11) pravi tokom sesije snimanja. Snimak (11) sadrži programski deo (20) sa informacijom koja treba da bude snimljena. Pre snimanja programskog dela (20) snima se unapred odredjeni broj ulaznih blokova (21, 22, 23, 24), i posle snimanja programskog dela (20) snima se unapred odredjeni broj izlaznih blokova (25, 26). Tokom sesije snimanja, identifikacioni kod (RID), koji identifikuje uredjaj za snimanje koji se koristi za relevantnu sesiju snimanja, snima se na medijum. Prema predmetnom pronalasku ovaj identifikacioni kod (RID) se snima u najmanje jednom od pomenutih ulaznih blokova (21, 22, 23, 24) i izlaznih blokova (25, 26). Ovo obezbedjuje mogućnost snimanja punog identifikacionog koda, čak i u slučaju relativno kratkih snimaka.
Patent YU-9492-A (YU)
Inventor: SCHUBETR G
IPC: C07D213/04
Filed: 1992-01-30
Abstract: The invention relates to 2,4- and 2,5-bis(tetrazolyl)pyridines. The said compounds inhibit the enzymes proline hydroxylase and lysine hydroxylase and cause selective inhibition of collagen biosynthesis. They are used as fibrosuppressants and immunosuppresants.
Patent DK-46495-A (DK)
Inventor: THOSTRUP CHRISTIAN
IPC: G09F17/00
Filed: 1995-04-21
Abstract: PCT No. PCT/DK96/00176 Sec. 371 Date Jan. 23, 1998 Sec. 102(e) Date Jan. 23, 1998 PCT Filed Apr. 19, 1996 PCT Pub. No. WO96/33482 PCT Pub. Date Oct. 24, 1996The present invention relates to a flag which is adapted to keep the flag distended and appearing as natural as possible under all wind and weather conditions. The flag includes a flexible bar (1), the ends of which are retained in pockets (2 and 3) along the upper rim (4) of the flag and the rim (5) of the flag adjacent the flagpole, whereby the bar is firmly fixed and extends substantially in the plane of the flag while forming a curve extending upwards towards the upper corner of the flag adjacent the flagpole. The flag includes a fixing part (6) for the bar in an area between the pockets. The fixing part includes a strip of the flag resulting from two short cuts (7 and 8) therein.
Patent GB-100875-A (GB)
Title: Tilting Mechanism for the Tail Planes of Aerial Craft.
Inventor: ROE ALLIOTT VERDON
IPC: B64C13/00
Filed: 1916-01-05
Abstract: 100,875. Roe, A. V. Jan. 5, 1916. Steering and balancing.-The stabilizing-tail of an aeroplane, seaplane, etc., is adapted to be tilted to allow for variations in the distribution of the load without interfering with its bracing. The tail-plane A, which is divided by the fuselage, is pivoted about an axis B and is braced at its rear end by wires D to a vertical strut C capable of sliding within limits in guides Y between the canvas sides of a fin E. Elongated holes H allow passage of the bracing-wires. A spindle J has a screwed portion L engaging a nut S carried by a bracket Q on the strut C, the nut also having a slotted pivoted connexion with transverse frame members of the tail-plane, so that the strut C and the frame members are simultaneously moved by the nut S without affecting the bracing. The spindle J has a drum M from which cords 0 are led to a drum P near the pilot's seat to enable the spindle J to be turned. Guides N for the cords 0 are carried by the strut C. The position of the tail-plane is indicated by a pointer d operated by a cord z connected to the nut S. The screw L may be replaced by a worm engaging a slightly curved rack on the strut C. Movement of the tail-plane does not affect the rudder or elevator.
Patent GB-835495-A (GB)
Title: Improvements in or relating to potentiometers
Inventor: TURNER HENRY BRYSON
IPC: H01C10/32
Filed: 1958-01-02
Abstract: 835,495. Variable resistors. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 12, 1958 [Jan. 2, 1958], No. 196/58. Class 37. A potentiometer having a casing in two parts adapted for relative rotary motion has a resistive element attached to the first part, a wiper attached to the second, a rotatable control shaft passing through the first part to engage the second and contact terminals mounted on the first part extending, in the direction of and substantially parallel to, the control shaft. As shown in Fig. 1, the potentiometer consists of a casing 2 of insulating material having two parts 1 and 3, and a control shaft 4 of insulating material. Mounted on the part 1 is an annular resistive track 5 and a collector ring 13, to which external connections may be made via terminals 26, 27 and 24, 25 respectively. These terminals also serve to secure the potentiometer to the circuit panel 23, on the upper side of which are printed circuit conductors. The second part 3 of the casing 2 is keyed on to the spindle 4, and carries the annular wiper element 6 from which extends contacts 18 and 19 contacting the ring 13 and the resistive track 5 respectively. Lateral movement of the shaft 4 is prevented by the ring 10 or by a modified form of the shaft and casing (Fig. 2, not shown) having conical mating surfaces.
Patent GB-876793-A (GB)
Title: Centrifuge device and fluid separation systems employing such devices
IPC: B04B5/08
Filed: 1946-01-02
Abstract: 876,793. Centrifugal separators. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Jan. 2, 1946 [Sept. 20, 1944], No.203/46. Class 23. In a separator for separating gases and comprising a rotor 4 mounted on a shaft 5, impellers 20, 21 rotating with the shaft serve to discharge the heavy and light fractions respectively. Gases to be separated are supplied through a bore in the upper part of the shaft, and pass through holes 12 into the rotor. The light fraction passes from the rotor through holes 15 to the bore and is discharged by the impeller 21 through an outlet 34. The heavy fraction passes from the rotor through an annulus between the shaft 5 and a shaft 8 to be discharged by the impeller 20 through an outlet 33. The rotor and shaft 5 are supported by bearings 7, 9, 40, 41 and a thrust bearing 23 and are driven by a belt engaging a pulley 16. In Fig 4 gases from reservoirs 37, 38 are fed respectively to separators A, D. The heavy and light fractions from the separator A are respectively fed to separator B and returned to the reservoir 37 whilst the heavy and light fractions from separator D are respectively returned to the reservoir 38 and fed to the separator C. The heavy and light fractions from the separator B are fed to the separators C, A respectively whilst the light and heavy fractions from the separator C are fed to the separator B and returned to the reservoir 38. End product may be drawn from the return line to the reservoir 37 whilst waste may be withdrawn from the return line to the reservoir 38.
Patent GB-957204-A (GB)
Title: Improvements in percussion tools
IPC: B25D9/12
Filed: 1961-01-03
Abstract: 957,204. Percussive tools. ATLAS COPCO A.B. Jan. 3, 1961 [Jan. 5, 1960], No. 224/61. Heading B4C. In a tool comprising a housing 1, and a hammer piston 7 reciprocable in the housing under the action of pressure fluid, a member such as a cap 18 carrying handles 19 is connected to the rest of the tool by vibration isolating pneumatic means. Depression of a trigger 54 reduces pressure in a chamber 57 so that air from a hose 30 passing the valve 42 is admitted to passages 33, 35. Air from the passage 35 passing through a pressure reducing valve 37 and a chamber 40 enters a space 9 to raise the piston. Air from the space 8 above the piston passes through a passage 63 to move a distribution valve 27 downwardly to admit air from the passage 33 to the space 8 to drive the piston downwardly on to the anvil block 11 which strikes the steel 12. The steel is held by a retainer (Fig. 2, not shown). When the piston opens a passage 66 the valve 27 is shifted upwardly to shut-off the air supply to the space 8 and opens a passage 34 to vent it to atmosphere. The cap carries pistons 23 running in bores 24 of the housing, the bores below the pistons 23 being connected to larger chambers 72 which are connected to each other. The bores above the pistons 23 are vented through passages 80. As soon as the tool is connected to an air supply, air passes through a hose 76 and restriction 78 to a chamber 72. A low pressure is built up in the bores and chambers since air may leak out through adjustable openings 79 when these are not blocked by the pistons 23. The openings 79 are larger than the restriction 78. The pressure within the bores and chambers does not vary greatly since the volume swept by the pistons due to movement of the cap is small compared with the total volume, little air is admitted through the restriction during periods the openings 79 are blocked, and little air escapes when the openings are clear. The hammer piston may be reciprocated by steam or hydraulically, and the pistons 23 may be replaced by a single piston so that the handles may be rotated relative to the housing. In the modification shown in Fig. 5, the cap has guides (not shown) sliding in the housing and the rods 24 of the pistons 23 have rubber tops 84<SP>1</SP> which engage the interior of the cap. If the tool is lifted from the work with the trigger 54 depressed, openings 92 in a tube 90 sliding in a bore 91 are closed to operate the distribution valve to stop the tool.
Patent GB-204987-A (GB)
Title: Improvements in devices for opening box-lids
IPC: B65D43/26
Filed: 1923-01-04
Abstract: 204,987. Heys, J. Jan. 4, 1923. , Inking-apparatus. - Boxes for containing stamp inking-pads or other materials which may soil the hands of the user, of the kind in which the lid is opened and closed by a pivoted lever with two projections, have the lever 4 pivoted at 5 inside the box 1 in a space formed by a partition 3. When the press stud 6 is depressed the projection 7 on the lever engages the open lid 12 and closes it, the second projection 9 acting in similar manner to open the lid. The latter preferably fits inside flanges 13 on the box.
Patent GB-229638-A (GB)
IPC: D01D5/14
Filed: 1925-01-06
Abstract: 229,638. Bemberg Akt.-Ges., J. P. Feb. 18, 1924, [Convention date]. Apparatus for making filaments.-The spinning funnel e of an apparatus for spinning artificial silk by the stretchspinning method, is continued up to or above the level of the spinning-nozzle b, and the whole of the coagulating-liquid is supplied through an inlet such as r below the upper edge of the funnel. By such an arrangement, a quiescent body of liquid adjacent to the spinning-nozzle is obtained. Specifications 8711/08 and 222,373 are referred to.
Patent GB-522237-A (GB)
Title: Improvements in or relating to reversing valve arrangements for regenerative furnaces
IPC: F28D17/04
Filed: 1939-01-05
Abstract: 522,237. Reversing valves for' regenerative furnaces. REINER, O. Jan. 5, 1939, No. 391. Convention date, Jan. 5, 1938. [Class 64 (i)] In a regenerative furnace with alternately heated regenerators for heating air and gas and separate reversing valves for the air and gas connected to a stack, the gas reversing valve A, Fig. 4, is provided with slides 1, 2 which are closed immediately before reversal takes place so that all the gases leaving the furnace pass through the air regenerator to the stack, while during reversal of the valves gas cannot escape to the chimney. The slides 1, 2 are opened after reversal. When it is desired to operate the slides 1, 2 an electric motor 11, Fig. 3, is started and actuates a shaft 9 provided with pinions 6, 6<1> engaging with racks 3, 3<1>, 4, 4<1> connected to the slides 1, 2. The racks 3, 3<1> at the end of the opening movement of the slides engage with rods 14, 15 and operate switch levers 7, 8 provided with contact pins 7a, 8a. One of these levers makes contact with an adjustable screw 17 or 18 on the reversing lever 19 according to the position of the valve and the motor is stopped. The gas valve is then reversed and simultaneously the air inlet cowl 24 is lowered on the air reversing valve 25, Fig. 5, to cut off the air supply, by an electric motor 26. The valve 25, is then changed over in the usual manner, the slides 1, 2 opened by the motor 11 and the cowl 24 raised again at such time as will allow the air to reach the furnace at the same time as the gas. By adjusting the.screws 17, 18 on the lever 19 the displacement of the slides 1, 2 may be varied. Dampers 27, 28 may be provided to vary the sectional areas of the flues connected to the air reversing valve 25.
Patent GB-547143-A (GB)
Title: Improvements in hydraulic power transmission pressure systems
IPC: F15B11/22
Filed: 1942-01-12
Abstract: 547,143. Revolving - cylinder pumps. VICKERS, Inc. Jan. 12, 1942, No. 415. Convention date Dec. 12, 1940. [Class 102 (i)] [Also in Group XXIX] In a swash-plate pump the pistons of the pumps are reciprocable in barrels 24 connected by cardan shafts to flanges 14 which are connected so as to move in unison by means of serrations 50 which cause the two units. to rotate at the same speed and to deliver the same amount of fluid per revolution. A sleeve 52 connected by a dowel to one flange 14 maintains the flanges apre-determined distance apart. The flanges 14 are mounted in anti-friction bearings 16 which may be of light construction owing to the balancing of axial thrusts. A drain 48 connects to the exhaust pipe 66 leading to tank 58.
Patent GB-605821-A (GB)
Title: Improvements in or relating to means or appliances for indicating stresses in tension members, and for weighing
IPC: G01L5/04
Filed: 1946-01-07
Abstract: 605,821. Jib cranes. MEATCHEM, C. A. Jan. 7, 1946, No. 491. [Class 78 (iv)] [Also in Groups XVIII and XIX] A tension indicating and warning device for use in jib cranes includes a drum 1 around which is wound a rope 2, the side of the drum from which the rope ends 2a, 2b protrude being stepped transversely to form concentric surfaces 1a, 1b somewhat like an arc of a differential drum. If the end 2b is subjected to a pull, the drum will be subjected to a turning moment which is controlled by a helical spring 6. The drum 1 is connected to a plate 16 attached to an arm formed in two parts 17, 17a, the part 17a being pivoted at 17b and having a striker member 22. A sector plate 20 is pivoted at 20a and heavily counterbalanced to keep it horizontal. When the drum is turned, the arm 17, 17a moves and causes the striker bar 2 to bear on the sector plate 20, and if the load is equal to the permitted safe load the portion 17a is deflected sufficiently to allow a spring 18 attached to the portion 17a to make contact with electrical contacts 19, 19a to give visual or audible warning.